Study on the Effects and Mechanisms of Modified Ma Xing Shi Gan Decoction in Treating Acute Exacerbations of Chronic Obstructive Pulmonary Disease

February 10, 2026 updated by: Cuiling Feng

Study on the Effects and Mechanisms of Modified Ma Xing Shi Gan Decoction in Treating Acute Exacerbations of Chronic Obstructive Pulmonary Disease Based on the "Lung-Large Intestine Mutual Interior-Exterior Relationship"

This study adopted a multi-center, randomized, controlled trial design. Patients with acute exacerbation of chronic obstructive pulmonary disease who met the inclusion criteria were randomly assigned to the experimental group and the control group. Both groups were treated under the guidance of the "Expert consensus on the acute exacerbation of chronic obstructive pulmonary disease in China (revision in 2023)" and the GOLD guidelines. The experimental group was treated with modified Maxing Shigan Decoction. The modified Ma Xing Shi Gan Decoction was administered twice a day for 14 days. Taking the length of hospital stay (days) of the patients as the primary efficacy indicator, and the TCM syndrome score, dyspnea score (mMRC), 6-minute walk test and mechanical ventilation demand rate as the secondary efficacy indicators, the clinical efficacy of modified Maxing Shigan Decoction in the treatment of acute exacerbation of chronic obstructive pulmonary disease was evaluated.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
200

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Patients meeting diagnostic criteria for COPD exacerbation, as defined by "Expert consensus on the acute exacerbation of chronic obstructive pulmonary disease in China (revision in 2023)" ;
  2. Patients meeting the diagnostic criteria for phlegm-heat stagnation in the lungs syndrome within COPD, as referenced in the "Clinical Diagnosis and Treatment Terminology of Traditional Chinese Medicine: Syndromes" and the 2020 International Guidelines for Clinical Practice of Traditional Chinese Medicine;
  3. Age > 18 years;
  4. Hospitalized patients;
  5. Voluntarily consent to treatment and sign an informed consent form.

Exclusion Criteria:

  1. History of allergy to the study drug;
  2. History of active liver disease;
  3. Patients undergoing dialysis or with known moderate to severe renal impairment;
  4. Suspected or confirmed active systemic infection;
  5. Patients with host immune dysfunction, host immunodeficiency, or host immune reconstitution.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: test group
The patient was given basic Western medical treatment combined with modified Ma Xing Shi Gan Decoction, orally twice a day for 14 days of intervention.
Drug: modified Ma Xing Shi Gan Decoction
The patient was given basic Western medical treatment combined with modified Ma Xing Shi Gan Decoction, orally twice a day for 14 days of intervention.
Drug: The specific drug comes from "Chinese Expert Consensus on the Diagnosis and Treatment of Acute Exacerbation of Chronic Obstructive Pulmonary Disease (Revised Edition 2023)" and the GOLD guidelines
Under the guidance of the "Expert consensus on the acute exacerbation of chronic obstructive pulmonary disease in China (revision in 2023)" and the GOLD guidelines, basic Western medical treatment was given. The main types include third-generation cephalosporins, expectorants, short-acting anticholinergic drugs, and short-acting β2 receptor agonists, etc.
Active Comparator: control group
Under the guidance of the "Expert consensus on the acute exacerbation of chronic obstructive pulmonary disease in China (revision in 2023)" and the GOLD guidelines, basic Western medical treatment was given
Drug: The specific drug comes from "Chinese Expert Consensus on the Diagnosis and Treatment of Acute Exacerbation of Chronic Obstructive Pulmonary Disease (Revised Edition 2023)" and the GOLD guidelines
Under the guidance of the "Expert consensus on the acute exacerbation of chronic obstructive pulmonary disease in China (revision in 2023)" and the GOLD guidelines, basic Western medical treatment was given. The main types include third-generation cephalosporins, expectorants, short-acting anticholinergic drugs, and short-acting β2 receptor agonists, etc.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Length of Hospital Stay (days)
Time Frame: collected at baseline, 7 days, and 14 days post-treatment.
Number of days the patient remains hospitalized during the study period.
collected at baseline, 7 days, and 14 days post-treatment.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Traditional Chinese Medicine symptom score
Time Frame: collected at baseline, 7 days, and 14 days post-treatment
The Traditional Chinese Medicine Syndrome Rating Scale is divided into four severity levels: absent, mild, moderate, and severe. Primary symptoms include cough, sputum volume, sputum characteristics, chest fullness and oppression, and dyspnea. Scores range from 0 (least severe) to 6 (most severe). Secondary symptoms include fever, restlessness, thirst with desire to drink, and urinary and bowel status. Scores range from 0 to 3 based on severity. The sum of these scores constitutes the total score. A higher total score indicates greater severity.
collected at baseline, 7 days, and 14 days post-treatment
Dyspnea assessment
Time Frame: collected at baseline, 7 days, and 14 days post-treatment.
mMRC questionnaire
collected at baseline, 7 days, and 14 days post-treatment.
Mechanical Ventilation Requirement Rate
Time Frame: collected at baseline, 7 days, and 14 days post-treatment.
Data is collected in real-time via the hospital's Electronic Medical Record (EMR) system and the ICU ventilator recording system to calculate Total Mechanical Ventilation Time (TMVT). This is further analyzed to distinguish Invasive Mechanical Ventilation Time (IMVT) and Non-Invasive Mechanical Ventilation Time (NIMVT).
collected at baseline, 7 days, and 14 days post-treatment.
6-Minute Walk Test Distance
Time Frame: Measured at baseline, 7 days, and 14 days.
Measured at baseline, 7 days, and 14 days.
Complete blood count (CBC)
Time Frame: Collected at baseline, 7 days, and 14 days.
Collected at baseline, 7 days, and 14 days.
C-reactive protein (CRP)
Time Frame: collected at baseline, 7 days, and 14 days post-treatment.
collected at baseline, 7 days, and 14 days post-treatment.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Cuiling Feng

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Linfen Central Hospital
Zhuhai Hospital of Integrated Traditional Chinese and Western Medicine
Qingyang hospital of traditional Chinese medicine, Gansu Province
Traditional Chinese Medicine Hospital of Changji Hui Autonomous Prefecture, Xinjiang

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 12, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 30, 2028

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 12, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 10, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 11, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 11, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 10, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2025PHB449-001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

have not decided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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